# `GSTTStem swapInstanceKeys:axesCount:toVersion:`

*Type Method*

## Declaration

```swift
class func swapInstanceKeys(_ oldDeltas: [AnyHashable : Any], axesCount: UInt, to toVersion: GSFormatVersion) -> [AnyHashable : Any]
```

```objc
+ (NSDictionary *) swapInstanceKeys:(NSDictionary *) oldDeltas axesCount:(NSUInteger) axesCount toVersion:(GSFormatVersion) toVersion;
```

```python
swapInstanceKeys_axesCount_toVersion_(oldDeltas: dict, axesCount: int, toVersion: GSFormatVersion) -> dict
```